These days were spent preparing and completing the Culminating Lab. The lab involved observing the relationship between velocity and height in a pendulum while at the same time, verifying the Law of Conservation of Mechanical Energy. In case it’s been forgotten (a previous post was made about this law), the Law of Conservation of Mechanical … More June 2nd – June 7th – Culminating Lab
The decay of single atoms are random however as a whole, a pattern does appear. This is similar to a bubble bath: it’s impossible to predict which bubble will pop but you can start to see a pattern of decay over time. The half-life is the time it takes for half an atom to decay. … More Radioactive Decay + Nuclear Energy
The image below was used in class to teach a very important concept. The red horizontal lines represent a phase change. To clarify what is seen in the graph, there is no change in temperature (as there’s no slope in the line). Essentially, the equation Q = m L shows the energy being absorbed during … More Latent Heat!
This lesson involves the application of concepts learned (and to-be-learned shortly) to real life situations. Demonstration #1: Q. 2 objects are on a desk. One of them is made of metal and the other is of a plastic-like material. Which is warmer? Which is cooler? A. Likely, you’d have said that the metal is cooler. … More Specific Heat Capacity
In yesterday’s post, a lesson was provided on heat, internal thermal energy, temperature and others! To help summarize and visualize that lesson, a mind map on the lesson is attached below:
Internal Energy: The sum of the kinetic energies and potential energies of the particles in a substance. This can be changed by heating the object or doing work on the object! Kinetic Energy: Atoms and molecules are constantly in motion – the more motion, the more kinetic energy. Potential Energy: There’s potential energy between the … More Thermal Physics!!!
Power is defined as the ratio of work done, W, to change in time, Δt, that it takes to do the work. Equation: P = W / Δt Unit: Joules/s (which is equal to 1 watt (W)) Activity: Determine the power transferred during a walk up a flight of stairs (basically, what is your leg power?) Setup: … More I’ve got the Power!